You’ve heard of red velvet cupcakes – but what about blue velvet? These Wild Blueberry Velvet cupcakes consist of whole blueberries, cocoa powder, flour, buttermilk, oil, sugar, two different shades of gel paste (to get that deep blue and purple coloring) and several other items. The results are a rich, deeply flavored, dark blue cupcake. The frosting is a homemade cream cheese blend that has been tinted several different colors in order to produce a wild effect. These are both cute and tasty at the same time!
Source Amanda Cupcake

Red Velvet cupcakes are a classic treat that can easily be served at any function, big or small, fancy or casual. These are flavored with unsweetened cocoa powder, and also contain cake flour, kosher salt, an egg, sugar, vegetable oil, vanilla extract, buttermilk, baking soda, white vinegar, and of course, red food coloring (otherwise they would just be chocolate cupcakes.) In order to follow tradition, top them with cream cheese frosting. If you prefer, you can toss on a few sprinkles as well!
Source My Baking Addiction